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| author | bipmis <biplob.mishra@arm.com> | 2023-09-15 16:18:25 +0100 |
|---|---|---|
| committer | bipmis <biplob.mishra@arm.com> | 2023-09-15 16:18:25 +0100 |
| commit | 530a45c296f61f161342d7cda8ae6cc7455c6229 (patch) | |
| tree | 65bf3bc5df541a1b8a649d7019d43f9f79d386f3 | |
| parent | b799e9dafa7fdf7d2b356dd572e2011d86746ef6 (diff) | |
| download | llvm-530a45c296f61f161342d7cda8ae6cc7455c6229.zip llvm-530a45c296f61f161342d7cda8ae6cc7455c6229.tar.gz llvm-530a45c296f61f161342d7cda8ae6cc7455c6229.tar.bz2 | |
Add a or(phi,phi) test without loops
| -rw-r--r-- | llvm/test/Transforms/InstCombine/phi.ll | 69 |
1 files changed, 68 insertions, 1 deletions
diff --git a/llvm/test/Transforms/InstCombine/phi.ll b/llvm/test/Transforms/InstCombine/phi.ll index ece76ca2..81bed68 100644 --- a/llvm/test/Transforms/InstCombine/phi.ll +++ b/llvm/test/Transforms/InstCombine/phi.ll @@ -2364,10 +2364,77 @@ _Z3fooPKc.exit20: ret i1 %and9 } -define i1 @fold_or_phi_into_or_icmp(ptr noundef readnone %dv1, ptr noundef %val1, ptr noundef readnone %dv2, ptr noundef %val2) { +define i1 @fold_or_phi_into_or_icmp(ptr noundef readnone %dv1, ptr noundef readnone %dv2, ptr noundef %val1, ptr noundef %val2, i64 %i1, i64 %i2) { ; CHECK-LABEL: @fold_or_phi_into_or_icmp( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[CMP_I:%.*]] = icmp eq ptr [[VAL1:%.*]], null +; CHECK-NEXT: br i1 [[CMP_I]], label [[_Z3FOOPKC_EXIT:%.*]], label [[COND_I:%.*]] +; CHECK: cond.i: +; CHECK-NEXT: br label [[_Z3FOOPKC_EXIT]] +; CHECK: _Z3fooPKc.exit: +; CHECK-NEXT: [[RETVAL_0_I:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[I1:%.*]], [[COND_I]] ] +; CHECK-NEXT: [[CMP_I10:%.*]] = icmp eq ptr [[VAL2:%.*]], null +; CHECK-NEXT: br i1 [[CMP_I10]], label [[_Z3FOOPKC_EXIT19:%.*]], label [[COND_I11:%.*]] +; CHECK: cond.i11: +; CHECK-NEXT: br label [[_Z3FOOPKC_EXIT19]] +; CHECK: _Z3fooPKc.exit19: +; CHECK-NEXT: [[RETVAL_0_I20:%.*]] = phi i64 [ 0, [[_Z3FOOPKC_EXIT]] ], [ [[I2:%.*]], [[COND_I11]] ] +; CHECK-NEXT: [[TMP0:%.*]] = or i64 [[RETVAL_0_I]], [[RETVAL_0_I20]] +; CHECK-NEXT: [[OR_COND_NOT:%.*]] = icmp eq i64 [[TMP0]], 0 +; CHECK-NEXT: br i1 [[OR_COND_NOT]], label [[IF_THEN:%.*]], label [[IF_END4:%.*]] +; CHECK: if.then: +; CHECK-NEXT: [[CMP:%.*]] = icmp eq ptr [[DV1:%.*]], [[DV2:%.*]] +; CHECK-NEXT: br label [[CLEANUP:%.*]] +; CHECK: if.end4: +; CHECK-NEXT: [[TOBOOL2:%.*]] = icmp ne i64 [[RETVAL_0_I20]], 0 +; CHECK-NEXT: [[TOBOOL:%.*]] = icmp ne i64 [[RETVAL_0_I]], 0 +; CHECK-NEXT: [[OR_COND10:%.*]] = and i1 [[TOBOOL]], [[TOBOOL2]] +; CHECK-NEXT: br label [[CLEANUP]] +; CHECK: cleanup: +; CHECK-NEXT: [[RETVAL_0:%.*]] = phi i1 [ [[CMP]], [[IF_THEN]] ], [ [[OR_COND10]], [[IF_END4]] ] +; CHECK-NEXT: ret i1 [[RETVAL_0]] +; +entry: + %cmp.i = icmp eq ptr %val1, null + br i1 %cmp.i, label %_Z3fooPKc.exit, label %cond.i + +cond.i: + br label %_Z3fooPKc.exit + +_Z3fooPKc.exit: + %retval.0.i = phi i64 [ 0, %entry ], [ %i1, %cond.i ] + %cmp.i10 = icmp eq ptr %val2, null + br i1 %cmp.i10, label %_Z3fooPKc.exit19, label %cond.i11 + +cond.i11: + br label %_Z3fooPKc.exit19 + +_Z3fooPKc.exit19: + %retval.0.i20 = phi i64 [ 0, %_Z3fooPKc.exit ], [ %i2, %cond.i11 ] + %0 = or i64 %retval.0.i, %retval.0.i20 + %or.cond.not = icmp eq i64 %0, 0 + br i1 %or.cond.not, label %if.then, label %if.end4 + +if.then: + %cmp = icmp eq ptr %dv1, %dv2 + br label %cleanup + +if.end4: + %tobool2 = icmp ne i64 %retval.0.i20, 0 + %tobool = icmp ne i64 %retval.0.i, 0 + %or.cond10 = and i1 %tobool, %tobool2 + br label %cleanup + +cleanup: + %retval.0 = phi i1 [ %cmp, %if.then ], [ %or.cond10, %if.end4 ] + ret i1 %retval.0 +} + + +define i1 @fold_or_phi_into_or_icmp2(ptr noundef readnone %dv1, ptr noundef %val1, ptr noundef readnone %dv2, ptr noundef %val2) { +; CHECK-LABEL: @fold_or_phi_into_or_icmp2( +; CHECK-NEXT: entry: +; CHECK-NEXT: [[CMP_I:%.*]] = icmp eq ptr [[VAL1:%.*]], null ; CHECK-NEXT: br i1 [[CMP_I]], label [[_Z3FOOPKC_EXIT:%.*]], label [[WHILE_COND_I:%.*]] ; CHECK: while.cond.i: ; CHECK-NEXT: [[TEST_0_I:%.*]] = phi ptr [ [[INCDEC_PTR_I:%.*]], [[WHILE_COND_I]] ], [ [[VAL1]], [[ENTRY:%.*]] ] |